package com.situ.crm;

import java.io.Serializable;

public class People implements Serializable {
    String name;

    public People() {
        System.out.print(1);
    }

    public People(String name) {
        System.out.print(2);
        this.name = name;
    }


}

class Child extends People {
    People father;

    public Child(String name) {
        System.out.print(3);
        this.name = name;
        father = new People(name + ":F");
    }


    public Child() {
        System.out.print(4);
    }

    public static void main(String[] args) {
       //  new Child("mike");
        String[] array = new String[-1];

        Thread thread = new Thread(){
            @Override
            public void run() {
                super.run();
            }
        };
        thread.start();
    }
}

